WebSpeculative execution is a technique used by high-speed processors in order to increase performance by guessing likely future execution paths and prematurely executing the … WebIdentifying the points where the speculative threads will be spawned becomes one of the critical issues of this kind of architectures. In this paper, a criterion for selecting the region to be speculatively executed is presented to identify potential sources of speculative parallelism in general-purpose programs.
(PDF) A general compiler framework for speculative …
WebMar 5, 2024 · We introduce SMoTherSpectre, a speculative code-reuse attack that leverages port-contention in simultaneously multi-threaded processors (SMoTher) as a side channel to leak information from a victim process. SMoTher is a fine-grained side channel that detects contention based on a single victim instruction. To discover real-world … WebPractical attacks that exploit speculative execution can leak confidential information via microarchitectural side chan-nels. The recently-demonstrated Spectre attacks leverage speculative loads which circumvent access checks to read memory-resident secrets, transmitting them to an attacker using cache timing or other covert communication … boson exsim tests
Spectre Attacks: Exploiting Speculative Execution - IEEE …
WebSPECULATIVE EXECUTION 2 Speculative execution is an optimization technique employed in many modern computer processor chips. Processor chips implemented with an instruction pipeline were known to have performance penalties (Topham et al., 1987) applied during a branch instruction due to a pipeline stall. To mitigate these pipeline stalls, the … WebMay 23, 2024 · 88. 5.1K views 3 years ago. Spectre Attacks Exploiting Speculative Execution - Paul Kocher Presented at the 2024 IEEE Symposium on Security & Privacy. WebMeltdown and Spectre exploit critical vulnerabilities in modern processors . These hardware vulnerabilities allow programs to steal data which is currently processed on the … boson github